Head-rest



(No Model.)

G. W. ARCHER.

HEAD REsT.

No. 535,783. Patented Mar. 12, 1895.

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Z A TTORNEYJ NITED STATES ATENT FFICEQv HEAD-REST.

SPECIFICATION forming part of Letters Patent No. 535,783, dated March12,1895.

Original application filed January 11, 1890, Serial No. 336,667. Dividedand this application filed December 2 6, 1390.

Serial No. 375,888. (No model.)

To (1Z7 whom it 72mg concern:

Be it known that I, GEORGE W. ARCHER,

of Rochester, in the county of Monroe and My present invention has forits objects to.

provide an improved head rest adapted to be used on dental and similarchairs which shall be simple and cheap in construction and will enablethe rest to be securely held in any desired position of adjustment theparts being released and again secured after being adjusted by a singleoperation and it consists in certain novelties of construction andcombinations of parts all as will be hereinafter described and the novelfeatures pointed out particularly in the claims at the end of thisspecification.

In the drawings: Figure 1 is a perspective View of ahead restconstructed in accordance with my invention; Fig. 2, a sectional view ofthe same, and Fig. 3 a cross sectional viewon the line 00 w of Fig. 2,and Fig. 4, a plan view of the head rest.

Similar figures of reference indicate-sin] ilar parts.

The figurel indicates a chair back of the ordinary or preferredconstruction and 2 an arm or head rest support consisting of a bar bentat right angles, forming an extension. 3, secured thereto in any desiredmanner preferably by means of a split clamp 4 on the chair back,arranged to grasp and hold said arm in any desired position ofadjustment The rearward extension 3 of the support is provided with avertical perforation through which extends a clamping bolt 5 having anaperture or eye therein and a threaded shank 6 to which is applied ahand nut 7 co-operating with the under side of arm 3.

The head rest consists of a block 8 properly cushioned, to the rear sideof which is secured a bracket casting 9 having two arms 10 and 11, theupper bifurcated and connected by a pin 12 passing through said arm withthe slotted end of a stem or plate 13 resting on the arm 3, while thelower arm 11 is connected by a pivotal pin 14 with the bifurcated end ofa stem or plate 15, said plate resting upon plate 13 and having thedepending flanges at the sides covering the same,while the upwardlyprojecting end of plate 13 projects between the armson the end of plate15, as shown. Both of the plates or bars 13 and 15 extend through theeye of clamping bolt 5, the latter late resting on the arm 3, so that byscrewing the nut 7 up tightly, they Will be clamped together and to saidarm. By loosening this nut the restcan be tilted forward and backward(the plates sliding upon each other and permitting this) orthe wholerest can be moved bodily forward or backward on the arm 3 and againsecured by tightening the nut.

- By rotating the bar 2 in its socket on the chair back and rotating thebolt 5 in the bar an infinite number-of adjustments of the rest, as awhole, can be made.

This form of head rest is very simple and any desired position ofadjustment can be had without the employment of a great number of partsor securing or adjusting screws, so that it can be manufactured cheaply.

Instead of employing the form of arm 2, shown, any other form of supportcould as well be used capable of other adjustments than those hereshown, and instead of providing the upper plate or stem with flanges forcovering the lower one these could be dispensed with. However, I preferto employ them as they seem to give a better finish to the parts.

Other means of positively and yet adjust ably connecting the stem andrest could be employed instead of the slot and pin connection shown, butI prefer this on account of its cheapness and simplicity.

I do not claim broadly a head-rest- With two stems connected thereto andsliding upon each other combined with a single clamp for looking themtogether and to a support, as the same is not of my invention.

I claim as my invention- 1. The combination with the head rest support,of the head rest, the two arms thereon,

the plate having the bifurcated end, pivoted to one of the arms on therest and another plate extending between the arms of the last mentionedone and pivoted to the other arm on the rest, substantially asdescribed.

2. The combination with the head rest support, of the head rest, the twosupporting plates in contact with each other one pivoted directly to therest and the other connected thereto by a flexible adjustable connectionand a clamping device arranged to lock the plates together,substantially as described.

3. The combination with the head rest support, of the head rest, the twosupporting plates, one pivoted directly to the rest and the otherconnected thereto by a flexible adj ustable connection and a clampingdevice arranged to lock the plates to each other and to the restsupport, substantially as described.

4. The combination with thehead rest support of the head rest, the twosuperposed supporting plates therefor, each independently connected tothe head rest and arranged in the same plane, a clamping bolt having aneye through which said plates pass and passing through the head restsupport and a nut on the bolt for clamping said plates to each other andto the support,'substantially as described.

5. The combination with the head rest support of the head rest, the twosupporting plates or stems therefor, one pivoted directly to the restand the other connected thereto by a slot and pin connection, bothplates being arranged in the same plane, and a clamping device forsecuring them to each other and to the support, substantially asdescribed.

6. The combination withthe head rest support, of the head rest, the twosupporting plates therefor, one arranged upon the other and one pivoteddirectly to the head rest, and the other by a slot and pin connection, aclamping bolt having an eye through which said plates pass and passingthrough the head rest support and a nut on the bolt for clamping saidplates to each other, substantially as described.

7. In a head rest, the combination with a suitable support and a headrest cushion, of a two part stem connecting the head rest cushion withthe support, one of the parts of the two part stern being pivoteddirectly to the cushion frame and the other connected therewith by aflexible adjustable connection, and a clamping device to look the partsof the stem together and to the support, substantially as described.

GEORGE W. ARCHER.

Witnesses:

WALTER S. HUBBELL, FRED F. CHURCH.

